Microsoft Internet Explorer CElement::GetClassCacheArray Improper Indexing Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of arguments passed to the CElement::GetClassCacheArray function. By manipulating a document’s elements an attacker can force certain arguments to be passed causing improper indexing. An attacker can leverage this vulnerability to execute code under the context of the current process.